Nerve impulses are conducted along an axon in only one direction. Which physiological phenomenon is responsible for preventing the backward flow of an impulse?
Q1. Nerve impulses are conducted along an axon in only one direction. Which physiological phenomenon is responsible for preventing the backward flow of an impulse?
Answer: Refractory period
Explanation: The refractory period ensures the impulse moves in one direction; myelination is tempting because it increases speed rather than determining the directionality.